Finding the Third Proportional to 1,878,160 and 3,911,968

Step by Step Solution

1. Step 1: Write the proportion equation
   1,878,160 : 3,911,968 = 3,911,968 : x
2. Step 2: Convert to fraction form
   1,878,160/3,911,968 = 3,911,968/x
3. Step 3: Cross multiply
   1,878,160x = 3,911,968 × 3,911,968
4. Step 4: Simplify right side
   1,878,160x = 15,303,493,633,024
5. Step 5: Solve for x
   x = 15,303,493,633,024/1,878,160
6. Step 6: Final answer
   x = 8,148,130.95